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Finding the Fourth Proportional to 503,506.40, 755,259.60 and 304,440.80

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Solution

The fourth proportional to 503,506.40, 755,259.60 and 304,440.80 is: 456,661.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,506.40 : 755,259.60 = 304,440.80 : x
  2. Step 2: Convert to fraction form
    503,506.40/755,259.60 = 304,440.80/x
  3. Step 3: Cross multiply
    503,506.40x = 755,259.60 × 304,440.80
  4. Step 4: Simplify right side
    503,506.40x = 229,931,836,831.68
  5. Step 5: Solve for x
    x = 229,931,836,831.68/503,506.40
  6. Step 6: Final answer
    x = 456,661.20

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.